import re
from rest_framework import serializers

from users.models import User

class UserSerialzier(serializers.ModelSerializer):
    '''
    用户序列化器
    '''
    class Meta:
        model = User
        fields = ('id','username','mobile','email','password')
        extra_kwargs = {
            'password':{
                'write_only':True,
                'max_length':20,
                'min_length':8,
            },
            'username':{
                'max_length':20,
                'min_length':8,
            }
        }

    def validate_mobile(self, value):
        if not re.match(r'1[3-9]\d{9}', value):
            raise serializers.ValidationError('手机格式不对')
        return value

    def create(self,validated_data):
        user = User.objects.create_user(**validated_data)
        return user